الفهرس 
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Abstract
Reinforced concrete shear walls have been used worldwide in mega-high-rise buildings in world used as the main system for resisting lateral loads. The study of the different architecturally possible configurations and shapes of shear walls is of the highest importance especially in the conceptual design stage. This study investigated the structural performance of curved shear walls as one possible option for structural designers. The structural performance assessment is performed using analytical methods. A comparison is made between planar and curved geometries of walls. Initially, a sectional analysis of eight different wall sections, including the development of moment-curvature relationships, interaction diagrams, and sectional available curvature ductility, is made to preliminarily assess the force and deformation capacity of walls. Consequently, eight slender walls are assigned to the same sections used in the sectional analysis in order to study the plastic hinge length and the spread of plasticity over the height of the walls. Eventually, a case study of four high-rise buildings with planar and curved shear walls is conducted. The assessment of the four buildings is carried out using nonlinear static pushover analysis and the response modification factor is evaluated. The aim of this study is to give designers an insight into linear and nonlinear behavior of curved shear wall elements that is most important in the conceptual design phase. The curved wall elements showed higher ductility and deformation capacity. Moreover, they can be of higher stiffness and strength than planar walls of the same concrete dimensions and reinforcement amount with good positioning of walls within buildings.